Did you know that you can come inside the Museum to bird-"watch"? Four new videos on amnh.tv introduce viewers to the diversity of bird habitat groups (dioramas) and the history of ornithology at the Museum.

Did you know that the entire universe was once hotter than the surface of the Sun? What became of the light emitted by that hot universe? In a video, astrophysicist Mordecai-Mark Mac Low introduces viewers to the cosmic microwave background—energy left over from the Big Bang.